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大家好!请高手帮忙一下!
4 w9 s6 B7 c6 F7 P6 s( {对于接地符号带圈的与不带圈的我越来越混淆了!!+ \& b5 O" z8 u1 s( o5 L4 V: t
在UL60950中有说到,
/ [; o* p! d" q# [: l" E0 v! T' nA wiring terminal intended for connection of a PROTECTIVE EARTHING CONDUCTOR shall be indicated by
( v U1 h" |- f# h1 e- v9 Gthe symbol (60417-1-IEC-5019). This symbol shall not be used for other earthing terminals.
" Q5 g6 P/ F5 ?( A7 Z对于接地,分为PE与PB,还有功能接地.
% f* E) M7 B* b, C! s9 `# l请问我一个模块电源,它不直接与DC mains相连,PCB板上的接地端用带圈的还是不带圈的?功能接地用哪个符号呢?
2 A1 y% H5 L) J8 p z8 ^% p( f; x2 }谢谢了? |
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